Re: Transcoders to retreat from any reformatting in case of Mobile-optimised site ( LC-2091)

 Dear Luca Passani ,

The Mobile Web Best Practices Working Group has reviewed the comments you
sent [1] on the Last Call Working Draft [2] of the Content Transformation
Guidelines 1.0 published on 1 Aug 2008. Thank you for having taken the time
to review the document and to send us comments!

The Working Group's response to your comment is included below, and has
been implemented in the new version of the document available at:
http://www.w3.org/TR/2009/WD-ct-guidelines-20091006/.

Please review it carefully and let us know by email at
public-bpwg-comments@w3.org if you agree with it or not before 6 November
2009. In case of disagreement, you are requested to provide a specific
solution for or a path to a consensus with the Working Group. If such a
consensus cannot be achieved, you will be given the opportunity to raise a
formal objection which will then be reviewed by the Director during the
transition of this document to the next stage in the W3C Recommendation
Track.

Thanks,

For the Mobile Web Best Practices Working Group,
Dominique Hazaël-Massieux
François Daoust
W3C Staff Contacts

 1. http://www.w3.org/mid/48C78D19.7060803@eunet.no
 2. http://www.w3.org/TR/2008/WD-ct-guidelines-20080801/


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Your comment on 4.3.1 Receipt of Cache-Control: no-transform:
> Consistently with my other comment that no extra content should be added
> 
> to transcoded web sites, I think that this should apply even more 
> strongly to mobile-optimised sites. Unfortunately, I see a lot of 
> transcoder deployments where operators and/or transcoder vendors feel 
> entitled to add advertisement and extra navigation bars to existing 
> mobile optimisec ontent. Because of this, I suggest the following 
> addition as a note to "4.3.1":
> 
> "Note: It should be stressed that, in case of a |Cache-Control: 
> no-transform| directive,  adding  any extra content (such as banners, 
> navigation bars and links not available in the original application) is
> 
> not admissable"
> 
> Thank you
> 
> Luca Passani


Working Group Resolution (LC-2091):
The Working Group agrees that adding any extra content to HTTP responses
served with a Cache-Control: no-transform directive is not admissible.

The Working Group notes that injection of extra content is an alteration
of the response, and that alteration of an HTTP response served with a
Cache-Contol: no-transform is explicitly forbidden:
http://www.w3.org/TR/2009/WD-ct-guidelines-20091006/Overview.html#sec-receipt-of-cache-control-no-transform



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Received on Tuesday, 6 October 2009 15:49:37 UTC